E. D. M. Fong MB ChB; A. S .R. Bartlett PhD, FRACS; S. Malak ME; I. A. Anderson PhD, ME.
TENSILE STRENGTH OF SURGICAL KNOTS IN ABDOMINAL WOUND CLOSURE*
Article first published online: 4 FEB 2008
2008 The Authors Journal compilation
ANZ Journal of Surgery
Volume 78, Issue 3, pages 164–166, March 2008
How to Cite
Fong, E. D. M., Bartlett, A. S. R., Malak, S. and Anderson, I. A. (2008), TENSILE STRENGTH OF SURGICAL KNOTS IN ABDOMINAL WOUND CLOSURE. ANZ Journal of Surgery, 78: 164–166. doi: 10.1111/j.1445-2197.2007.04394.x
This work has been presented in part at the Surgical Research Society Meeting of Australia and New Zealand, Auckland, New Zealand, October 2004 and published in abstract in the ANZ J. Surg. 2005; 75: A129–34.
- Issue published online: 4 FEB 2008
- Article first published online: 4 FEB 2008
- Accepted for publication 18 May 2007.
- surgical knot;
- suture tensile strength;
- wound closure
Abdominal wound dehiscence is a surgical catastrophe that can be attributed to patients or technical factors. The technical properties of the monofilament sutures and knots that are commonly used in abdominal closure are poorly understood. The aim of this study was to compare the tensile strength of monofilament sutures tied with conventional knots. To do this, the knot-holding capacity of four types of knots (square, surgeons', Aberdeen and loop) were tested using three types of gauge 1 monofilament suture, namely nylon, polyglyconate and polydioxanone, using a tensiometer. We found that the knot-holding capacity of the loop knot was between twofold and threefold greater than all the other knots examined. In comparing suture types, polyglyconate had the highest knot-holding capacity for all the knots that were examined and there was no difference in the tensile strength of nylon and polyglyconate tied in a square, surgeons' or Aberdeen knot (P < 0.05). In conclusion, our findings suggest that closure of an abdominal wound would be best commenced with a loop knot, using gauge 1 polyglyconate and finished with either an Aberdeen square or surgeons' knot would be appropriate.